Zawel Kwartin
type: MusicGroup
popularity: 2
followers: 570
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x33f9ab94f013a30d3cf1f906bb51dd5a55bf085f51f84390b6482d5b812945b3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae947d4b-3dfe-4c8b-ac3f-727ef162d212.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae947d4b-3dfe-4c8b-ac3f-727ef162d212.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ae947d4b-3dfe-4c8b-ac3f-727ef162d212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x33f9ab94f013a30d3cf1f906bb51dd5a55bf085f51f84390b6482d5b812945b3","name":"Zawel Kwartin","registered_at":"2026-06-20T11:01:25Z","symbol":"NIM1597945","token_address":"0xefeb22088eef83f07fb84712c402a40c5f5a3247","type":"artist","uuid":"ae947d4b-3dfe-4c8b-ac3f-727ef162d212"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f9ab94f013a30d3cf1f906bb51dd5a55bf085f51f84390b6482d5b812945b3. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae947d4b-3dfe-4c8b-ac3f-727ef162d212.json and https://artists.proofprofile.net/proofs/artist/ae947d4b-3dfe-4c8b-ac3f-727ef162d212.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0x33f9ab94f013a30d3cf1f906bb51dd5a55bf085f51f84390b6482d5b812945b3","name":"Zawel Kwartin","registered_at":"2026-06-20T11:01:25Z","symbol":"NIM1597945","token_address":"0xefeb22088eef83f07fb84712c402a40c5f5a3247","type":"artist","uuid":"ae947d4b-3dfe-4c8b-ac3f-727ef162d212"}
album: Cantorial Pieces
  type: MusicAlbum
  date published: 2008-01-01
album: Cantorial Pieces
  type: MusicAlbum
  date published: 2008-05-06
album: Cantoral Pieces
  type: MusicAlbum
  date published: 2015-02-23